You can check out what other people have made along with making your own
I bring this player up because his love of milling would lead to the creation of a huge amount of milling cards, including a few sets with strong milling subthemes
Creature - Human Soldier Gilraen, Dnedain Protector , : Exile another target creature you control
Its closes tightly enough to hold your cards while inverted and doesn't require magnets or the lifting of any latches to open it back up
Much different from box-toppers that players will find today, these cards were a mix of one card that had never received a reprint up until that point from almost every set
Jegantha, the Wellspring Jegantha, the Wellspring might not look impressive at first, but it provided the kind of free consistency many decks needed to dominate long, grindy games